Mitsubishi Electric Mr. Slim PLA Series Service Manual page 23

Abnormal point and detection method
Check code
Freezing/overheating protection is work-
ing
1
:
:
2
Pipe temperature
OCH581
1
2
3
:]
4
:
5
6
7
[ :]
1
2
3
:
4
5
6
:
7
:
8
1
2
]
3
4
5
[
Cause
1
2
4
5
67
1
2
4
5
6–8
1–4
23
Countermeasure